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Recent global estimates of nesting females of the critically endangered leatherback sea turtle (Dermochelys coriacea) runs between 26,000 and 43,000. Go Log In Sign Up
About leatherback turtles. 1  The leatherback is the largest sea turtle, reaching up to nearly two metres (6.5 feet) in length and 540kg (1190 pounds) in weight.  Unlike other sea turtles, the leatherback does not have a hard shell.